Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 152 for “"Solar wind"”.
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Solar-wind heating of asteroids.
Thesis. 1976. M.S.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Sciences.
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Magnetic holes in the solar wind
… holes from several years of data collected from WIND and ACE spacecraft and use them to study some statistical properties of the magnetic holes.
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Application of an empirically-derived polytropic index for the solar wind to a solar wind shock propagation model
… for the polytropic index for the free-streaming solar wind. Application of this non-adiabatic polytropic index to a two-dimensional solar wind computer model to simulate the effects of thermal heat conduction has been investigated. The current project involves the insertion of this …
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Extraplanetary Exploration Using Electric Solar Wind Sail
… of extraplanetary exploration using an electric solar wind sail (E-sail). The E-sail is a novel propellantless propulsion technology that harvests energy by repelling the charged particles in solar wind. It consists of a spinning central spacecraft connected by kilometer-long and thin positively …
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The interaction of Neptune with the solar wind
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1993.
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Solar wind plasma : kinetic properties and micro-instabilities
The kinetic properties of ions in the solar wind plasma are studied. Observations of solar wind +H and +2He by the Faraday Cup instrument component of the Solar Wind Experiment on the Wind spacecraft show that these ions have magnetic field-aligned, convected, bi-Maxwellian velocity distribution …
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Ionospheric Convection and Auroral Responses to Solar Wind Driving
… dynamics in the Earth's magnetosphere due to solar wind driving. When the interplanetary magnetic field (IMF) is orientated southward, reconnection on the dayside magnetopause opens magnetic flux, which eventually reconnects in the magnetotail. When dayside reconnection is dominant, the polar …
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Statistical Study of Solar Wind Conditions Prior to Substorm Onsets
… However in this study, a total of 28 years of solar wind data is analyzed from NASA’s OMNI database to determine if any predictions can be made at all. This thesis investigates statistical differences between parameters before, during, and after substorm onset. This is accomplished using …
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Solar Wind Helium, Neon, And Argon In Genesis Aluminum Collectors
The Genesis mission collected samples of solar wind: SW) for 853 days and returned them to Earth for analysis. There are several processes that have the potential to significantly alter the composition between the time when SW ions are accelerated away from the sun, to the time the laboratory …
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Wave-particle interactions in the solar wind and solar flares
… plasma waves play an important role in both the solar wind and solar flares. The dynamics of plasma turbulence in these settings controls the strength of the interactions, by determining the amplitudes of the small-scale electromagnetic fluctuations that have the largest effect on the particles. …
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Solar wind entry into the magnetosphere under northward IMF conditions
… the source of the CDPS is thought to be the solar wind.</p><p>Usually, solar wind plasma and energy entry into the magnetosphere is considered to occur mainly during the southward IMF condition through reconnection processes that first occur at the dayside magnetopause and then in the …
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Solar wind-magnetosphere interactions : a statistical analysis of spacecraft measurements
When investigating solar wind-magnetosphere-ionosphere coupling, it is important to understand how the solar wind, and the interplanetary magnetic field (IMF) frozen into it, behaves as it reaches the Earth. Magnetic reconnection, for example, is a phenomenon whose morphology is governed by the IMF …
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Magnetic reconnection physics in the solar wind with Voyager 2
… to observe in situ. In this thesis, the solar wind plasma permeating interplanetary space is treated as a laboratory for reconnection physics. I present an exhaustive statistical approach to the identification of reconnection outflow jets in turbulent plasma and magnetic field time series …
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Wave-particle interactions and the dynamics of the solar wind.
Thesis. 1978. Ph.D.--Massachusetts Institute of Technology. Dept. of Physics.
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Solar Wind-Magnetosphere-Ionosphere Coupling: Multiscale Study with Computational Models
Solar wind-magnetosphere-ionosphere (SW-M-I) coupling is investigated with three different computational models that characterize space plasma dynamics on distinct spatial/temporal scales. These models are used to explore three important aspects of SW-M-I coupling. A particle-in-cell (PIC) model …
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Mode conversion and wave -particle interaction processes in the solar wind
… and wave-particle interaction processes in the solar corona and wind. We first investigate the effect of an inhomogeneous velocity field on the propagation of waves in the solar atmosphere. We find that coupling between Alfven waves and fast magnetosonic waves can occur for parameters …
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Modeling and Analysis of Grid-Connected Solar-Wind Hybrid Power System
1 PDF file (86 pages)
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A scale-free analysis of magnetic holes in the solar wind
… relative to turbulent fluctuations in the solar wind. We apply this technique in a comprehensive search for magnetic holes in the Wind and ACE magnetometer data streams through 2004. Using magnetic field and ion measurements on the Wind spacecraft, we present the first statistical study of …
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A study of the relationship between micropulsations and solar wind properties
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Physics, 1989.
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